Home / 78,976.02-118,464.21-39,493.38

Finding the Fourth Proportional to 78,976.02, 118,464.21 and 39,493.38

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Solution

The fourth proportional to 78,976.02, 118,464.21 and 39,493.38 is: 59,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,976.02 : 118,464.21 = 39,493.38 : x
  2. Step 2: Convert to fraction form
    78,976.02/118,464.21 = 39,493.38/x
  3. Step 3: Cross multiply
    78,976.02x = 118,464.21 × 39,493.38
  4. Step 4: Simplify right side
    78,976.02x = 4,678,552,061.93
  5. Step 5: Solve for x
    x = 4,678,552,061.93/78,976.02
  6. Step 6: Final answer
    x = 59,240.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.